Ball-bearing slide carriage device

ABSTRACT

A ball-bearing slide carriage device comprising (a) a ball-bearing slide carriage which has an inner space and is provided with a plurality of filling slots, buffering open channels located at ends and outside the filling slots and adjoining buffer terminals at outermost ends of the ball-bearing slide carriage and (b) a plurality of balls positioned in the filling slots and used in providing relative sliding effect. As such, the ball-bearing slide carriage depending on the buffering open channels for sliding and stopped at terminal points generates neither noises nor vibrations and features superior buffer quality, quiet effect, durability and fewest troubles.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a ball-bearing device, particularly a ball-bearing slide carriage device with balls applied to a slide carriage and characteristic of superior durability, buffer effect, and fewest collision-induced noises.

2. Description of the Related Art

Cabinet lockers or drawers have been extensively applied in various storage implements. To realize a cabinet locker (drawer) which is conveniently pulled out, those slide tracks with functions for positioning and guidance are usually integrated into both laterals of a cabinet locker (drawer). For a cabinet locker (drawer) smoothly and conveniently pulled out or pushed in, a ball-bearing slide carriage which is installed between slide tracks (e.g., inner track and outer track) allows its both ends to be stopped by the inner and outer tracks and is driven in conjunction with the inner track's movement relative to the outer track; the outer track is equipped with a stopper at an outmost end which resists and restricts the ball-bearing slide carriage and prevents it from separation. As shown in FIG. 1 through FIG. 3, a ball-bearing slide carriage device based on prior arts comprises a bottom track 91, a central track 92, an outer track 93 and ball-bearing slide carriages 94, 95 installed therein: the bottom track 91 is provided with (a) a mounted plate 913 as one medium to fix the ball-bearing slide carriage device on a cabinet wall (not shown in the figures), (b) a slide track space 911 therein, and (c) a limiting member 912 in the front of the slide track space 911; the central track 92 comprises a central track bottom 921 and a central track top 922 wherein the central track bottom 921 sliding and held in the slide track space 911 is equipped with a stopper 923 at the front end and the central track top 922 is equipped with a stopper 924 at the rear end; the outer track 93 linking a cabinet body (drawer) has a slide track space 930 in which the central track top 922 slides and is held and is provided with a limiting member 931 and a limiting member 932 at front and rear ends, respectively; the ball-bearing slide carriage 94 is installed between the central track 92 (central track bottom 921) and the bottom track 91 and the ball-bearing slide carriage 95 is installed between the central track 92 (central track top 922) and the outer track 93 wherein the ball-bear slide carriage 94 (95) has an inner space 941 (951) and is equipped with a plurality of filling slots 942 (952) and 943 (953) at front and rear ends for filling of a plurality of balls 943 (953). During an operation to pull out or push in the outer track 93 and the central track 92, the ball-bearing slide carriage 94 (95) slides between the central track 92 and the bottom track 91 (between the central track 92 and the outer track 93) and the limiting members are effective in terminating relative motions of the ball-bearing slide carriages 94, 95 and preventing them from separation in order to realize smooth movement under guidance and rolling of the balls 943 (953).

However, the abovementioned ball-bearing slide carriage device which depends on the ball-bearing slide carriage 94 (95) to realize smooth movement generates noises and is regarded as an unideal design failing in quiet effect and product quality for one cabinet locker (drawer) pulled out or pushed in when the sliding ball-bearing slide carriage 94 (95) resists and is stopped by the limiting members. Furthermore, vibrations are observed in the sliding ball-bearing slide carriage 94 (95) which resists and is stopped by the limiting members and evolve into noises due to collisions between the balls 943 (953) and the filling slots 942 (952), 943 (953) which are installed in the ball-bearing slide carriage 94 (95); those noises out of the considerable sum of balls 943 (953) are hardly ignored and required to be overcome. Against this background, it has become a critical issue to correct and get over drawbacks such as noise and vibration in the prior ball-bearing slide carriage in service by persons skilled in the industry.

Accordingly, the inventor having considered an imperfect structural design of the prior ball-bearing slide carriage device in service and attempted to optimize an automatic homing track device with features such as quiet effect, buffering flexibility and durability has studied and developed the present invention for serving the general public and promoting development of the industry.

SUMMARY OF THE INVENTION

The present invention is intended for providing a ball-bearing slide carriage device, which generates neither noises nor vibrations with the ball-bearing slide carriage stopped at a terminal point and embodies superior buffer quality, quiet effect, durability and fewest troubles, and positively promotes practicability and product quality and competitiveness.

To reach these purposes hereinbefore, the present invention adopts technical measures comprising (a) a ball-bearing slide carriage which has an inner space and is provided with a plurality of filling slots and buffering open channels located at two ends and outside the filling slots and adjoining buffer terminals at outermost ends of the ball-bearing slide carriage; (b) a plurality of balls positioned in the filling slots and used in providing relative sliding effect.

For technical features and effects in terms of the present disclosure completely understood and recognized, the preferred embodiments and detailed drawings are described hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic perspective view of a ball-bearing slide carriage device based on the prior art.

FIG. 2 is a schematic exploded view of a ball-bearing slide carriage device based on the prior art.

FIG. 3 is a partial schematic exploded view of a ball-bearing slide carriage based on the prior art.

FIG. 4 is a partial schematic exploded view of a ball-bearing slide carriage in the present invention.

FIG. 5 is a schematic view of the present invention which is pulled out.

FIG. 6 is a schematic view of the present invention which is pushed in.

FIG. 7 is a schematic sectional view of the present invention.

FIG. 7A is a partial schematic sectional enlargement view of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIG. 4 which illustrates the present invention of a ball-bearing slide carriage device comprises a ball-bearing slide carriage 10 and a ball unit 20 wherein the ball-bearing slide carriage 10, which is a tabular device with an inner space 16, comprises (a) a top face part 11 and (b) two side face parts 12 for development of an end-to-side face part 13 between the top face part 11 and the side face parts 12 in an appropriate embodiment and (c) two bottom hook parts 15, each of which extends inward from the side face part 12, for development of an open channel 151 in between and connection of the open channel 151 and the inner space 16. Furthermore, the ball-bearing slide carriage 10 is equipped with (a) a plurality of filling slots 17 located at front and rear ends (not limited to specific positions) and two beveled planes on the top face part 11 or the end-to-side face part 13 in an appropriate embodiment for connections of the filling slots 17 and the inner space 16 and (b) buffering open channels 18 which are located at two ends and outside the filling slots 17, link the inner space 16, and adjoin buffer terminals 19 at outermost ends of the ball-bearing slide carriage 10, that is, the ball-bearing slide carriage 10 is provided with the buffer terminals 19, the buffering open channels 18 and the filling slots 17 arranged in order from both ends. The ball unit 20 comprises a plurality of balls 21 filled in the filling slots 17 for supply of relative sliding effect.

Referring to FIGS. 5 and 6 which illustrate the present invention of a ball-bearing slide carriage device further comprises a bottom track 30, a central track 40 and an outer track 50: (a) the bottom track 30 comprises a track part 31 and a mounted plate 33 wherein the track part 31 (bottom track 30) has a slide track space 32 inside, the mounted plate 33 fixed on a cabinet wall (not shown in the figures) is used to position the bottom track 30, and the bottom track 30 is also equipped with a limiting member 35 in the front of the slide track space 32; (b) the central track 40 comprises a central track bottom 41 and a central track top 42: the central track bottom 41 sliding and held in the slide track space 32 is provided with a limiting member 411 and a limiting member 412 at front and rear parts, respectively; the central track top 42 is provided with a limiting member 422 and a limiting member 421 at front and rear parts, respectively; (c) the outer track 50 linking a cabinet body (drawer) has a slide track space 51 in which the central track top 42 slides and is held (or the outer track 50 slides and is held in the central track 40 relatively) and is provided with a limiting member 52 at the rear part.

In an embodiment, the present invention of a ball-bearing slide carriage device is provided with three tracks, that is, the central track 40 (outer track 50) slides and is held in the bottom track 30 (central track 40) wherein the bottom track 30 and the central track 40 (the outer track 50 and the central track 40) relatively slide and construct an unspecific model.

Alternatively, the present invention of a ball-bearing slide carriage device is embodied with a two-track structure whose compositions and motions are not repeatedly explained hereinafter.

The ball-bearing slide carriage 10 and the ball unit 20 can be held between the central track 40 (central track bottom 41) and the bottom track 30 as well as between the outer track 50 and the central track 40 (central track top 42). With the outer track 50 pulled out (FIG. 5) or pushed in (FIG. 6), the balls 21 within the filling slots 17 also slide between the central track 40 and the bottom track 30 as well as between the central track 40 and the outer track 50.

Referring to FIGS. 7 and 7A which illustrate the ball-bearing slide carriage 10 in the present invention of a ball-bearing slide carriage device is activated and displaced in conjunction with the outer track 50 (or under a driving force of the central track 40). With the ball-bearing slide carriage 10 shifted and approaching the limiting member 422 of the central track 40, the buffer terminal 19 at one end of the ball-bearing slide carriage 10 collides with and is stopped by the limiting member 422. The buffering open channel 18 which makes both the buffer terminal 19 and the buffering open channel 18 deformed synchronously is effective in offsetting an impact force and minimizing collision-induced noises/vibrations and shakes (collision-induced noises) out of the ball-bearing slide carriage 10 (the ball unit 20 therein) to reach a quite operation.

As such, the present invention of a ball-bearing slide carriage device, which depends on the buffering open channels to make the ball-bearing slide carriage stopped at terminal points and generates neither noises nor vibrations, embodies superior buffer quality, quiet effect, durability and fewest troubles and positively promotes practicability and product quality and competitiveness.

It can be seen from the above descriptions that the present invention significantly meets patentability and is applied for the patent. However, the above descriptions present preferred embodiments only which do not limit the scope of the present invention; any equivalent change or improvement based on shapes, structures, features and spirit mentioned in the present invention should be incorporated in claims of the present invention. 

What is claimed is:
 1. A ball-bearing slide carriage device, comprising: A ball-bearing slide carriage which has an inner space and is provided with (a) a plurality of filling slots, (b) buffering open channel located at two ends and outside said filling slots and adjoining buffer terminals at outermost ends of said ball-bearing slide carriage; A plurality of balls positioned in said filling slots and used in providing relative sliding effect.
 2. The ball-bearing slide carriage device according to claim 1 wherein said ball-bearing slide carriage comprises a top face part and two side face parts for development of an end-to-side face part between said top face part and said side face part and two bottom hook parts extending inward from said side face parts to develop an open channel between said two bottom hook parts for connecting said inner space.
 3. The ball-bearing slide carriage device according to claim 2 wherein said filling slots are located at both sides of said top face part.
 4. The ball-bearing slide carriage device according to claim 2 wherein said filling slots are located at said end-to-side face part.
 5. The ball-bearing slide carriage device according to claim 1 wherein said filling slots link said inner space.
 6. The ball-bearing slide carriage device according to claim 1 wherein said buffering open channel link said inner space.
 7. The ball-bearing slide carriage device according to claim 1 further comprises a bottom track and a central track: said bottom track comprises a track part and a mounted plate wherein said track part has a slide track space inside, said bottom track is equipped with a limiting member in the front of said slide track space, said central track slides and is held in said slide track space, and said ball-bearing slide carriage is installed between said bottom track and said central track.
 8. The ball-bearing slide carriage device according to claim 7 wherein said central track further comprises a central track bottom as well as a central track top and said central track bottom slides and is held in said slide track space.
 9. The ball-bearing slide carriage device according to claim 7 wherein said central track bottom is equipped with a limiting member at the front (or rear) end and said central track top is also equipped with a limiting member at the front (or rear) end.
 10. The ball-bearing slide carriage device according to claim 9 further comprises an outer track which completes a slide action relative to said central track and coordinates said central track for installation of said ball-bearing slide carriage device in between.
 11. The ball-bearing slide carriage device according to claim 10 wherein said outer track has a slide track space in which said central track top slides and is held and is provided with a limiting member at the rear end. 